./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/sum_non.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/sum_non.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 13160766ab5e643bd08f9724b40035ea4b7373673380c24ecb20b0478591b2b8 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 13:32:37,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 13:32:37,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 13:32:37,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 13:32:37,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 13:32:37,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 13:32:37,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 13:32:37,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 13:32:37,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 13:32:37,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 13:32:37,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 13:32:37,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 13:32:37,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 13:32:37,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 13:32:37,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 13:32:37,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 13:32:37,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 13:32:37,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 13:32:37,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 13:32:37,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 13:32:37,976 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 13:32:37,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 13:32:37,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 13:32:37,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 13:32:37,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 13:32:37,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 13:32:37,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 13:32:37,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 13:32:37,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 13:32:37,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 13:32:37,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 13:32:37,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 13:32:37,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 13:32:37,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 13:32:37,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 13:32:37,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 13:32:37,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 13:32:37,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 13:32:37,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 13:32:37,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 13:32:37,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 13:32:37,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 13:32:38,000 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-23 13:32:38,027 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 13:32:38,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 13:32:38,028 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 13:32:38,028 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 13:32:38,029 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 13:32:38,029 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 13:32:38,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 13:32:38,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 13:32:38,030 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 13:32:38,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 13:32:38,031 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 13:32:38,031 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 13:32:38,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 13:32:38,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 13:32:38,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 13:32:38,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 13:32:38,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 13:32:38,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 13:32:38,033 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-23 13:32:38,034 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 13:32:38,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 13:32:38,035 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 13:32:38,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 13:32:38,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 13:32:38,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 13:32:38,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 13:32:38,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:32:38,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 13:32:38,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 13:32:38,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 13:32:38,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 13:32:38,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 13:32:38,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 13:32:38,037 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13160766ab5e643bd08f9724b40035ea4b7373673380c24ecb20b0478591b2b8 [2022-07-23 13:32:38,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 13:32:38,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 13:32:38,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 13:32:38,286 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 13:32:38,287 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 13:32:38,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/sum_non.c [2022-07-23 13:32:38,335 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b08ba0eec/34a668bb803a459b83af1156f95247b4/FLAGa16f7921d [2022-07-23 13:32:38,724 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 13:32:38,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/sum_non.c [2022-07-23 13:32:38,730 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b08ba0eec/34a668bb803a459b83af1156f95247b4/FLAGa16f7921d [2022-07-23 13:32:39,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b08ba0eec/34a668bb803a459b83af1156f95247b4 [2022-07-23 13:32:39,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 13:32:39,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 13:32:39,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 13:32:39,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 13:32:39,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 13:32:39,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:32:39" (1/1) ... [2022-07-23 13:32:39,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56731235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:32:39, skipping insertion in model container [2022-07-23 13:32:39,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:32:39" (1/1) ... [2022-07-23 13:32:39,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 13:32:39,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 13:32:39,296 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/sum_non.c[561,574] [2022-07-23 13:32:39,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:32:39,303 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 13:32:39,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/sum_non.c[561,574] [2022-07-23 13:32:39,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:32:39,330 INFO L208 MainTranslator]: Completed translation [2022-07-23 13:32:39,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:32:39 WrapperNode [2022-07-23 13:32:39,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 13:32:39,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 13:32:39,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 13:32:39,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 13:32:39,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:32:39" (1/1) ... [2022-07-23 13:32:39,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:32:39" (1/1) ... [2022-07-23 13:32:39,362 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2022-07-23 13:32:39,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 13:32:39,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 13:32:39,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 13:32:39,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 13:32:39,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:32:39" (1/1) ... [2022-07-23 13:32:39,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:32:39" (1/1) ... [2022-07-23 13:32:39,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:32:39" (1/1) ... [2022-07-23 13:32:39,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:32:39" (1/1) ... [2022-07-23 13:32:39,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:32:39" (1/1) ... [2022-07-23 13:32:39,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:32:39" (1/1) ... [2022-07-23 13:32:39,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:32:39" (1/1) ... [2022-07-23 13:32:39,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 13:32:39,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 13:32:39,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 13:32:39,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 13:32:39,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:32:39" (1/1) ... [2022-07-23 13:32:39,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:32:39,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:32:39,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-23 13:32:39,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-23 13:32:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 13:32:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 13:32:39,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 13:32:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-07-23 13:32:39,454 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-07-23 13:32:39,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 13:32:39,505 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 13:32:39,507 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 13:32:39,640 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 13:32:39,645 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 13:32:39,645 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 13:32:39,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:32:39 BoogieIcfgContainer [2022-07-23 13:32:39,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 13:32:39,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 13:32:39,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 13:32:39,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 13:32:39,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:32:39" (1/3) ... [2022-07-23 13:32:39,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba4bd16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:32:39, skipping insertion in model container [2022-07-23 13:32:39,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:32:39" (2/3) ... [2022-07-23 13:32:39,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba4bd16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:32:39, skipping insertion in model container [2022-07-23 13:32:39,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:32:39" (3/3) ... [2022-07-23 13:32:39,655 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non.c [2022-07-23 13:32:39,667 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 13:32:39,667 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-07-23 13:32:39,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 13:32:39,733 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6d2e17f3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@c78da1e [2022-07-23 13:32:39,733 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-07-23 13:32:39,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:32:39,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-23 13:32:39,752 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:32:39,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-23 13:32:39,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:32:39,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:32:39,759 INFO L85 PathProgramCache]: Analyzing trace with hash 890531536, now seen corresponding path program 1 times [2022-07-23 13:32:39,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:32:39,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278325027] [2022-07-23 13:32:39,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:32:39,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:32:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:32:39,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:32:39,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:32:39,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278325027] [2022-07-23 13:32:39,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278325027] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:32:39,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:32:39,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 13:32:39,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399092784] [2022-07-23 13:32:39,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:32:39,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 13:32:39,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:32:40,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 13:32:40,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:32:40,037 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 27 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:32:40,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:32:40,191 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2022-07-23 13:32:40,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 13:32:40,197 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-23 13:32:40,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:32:40,203 INFO L225 Difference]: With dead ends: 56 [2022-07-23 13:32:40,203 INFO L226 Difference]: Without dead ends: 47 [2022-07-23 13:32:40,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-23 13:32:40,208 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 53 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:32:40,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 63 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:32:40,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-07-23 13:32:40,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 38. [2022-07-23 13:32:40,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.56) internal successors, (39), 32 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 13:32:40,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2022-07-23 13:32:40,250 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 6 [2022-07-23 13:32:40,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:32:40,250 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2022-07-23 13:32:40,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:32:40,251 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2022-07-23 13:32:40,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-23 13:32:40,253 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:32:40,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-23 13:32:40,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 13:32:40,253 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:32:40,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:32:40,254 INFO L85 PathProgramCache]: Analyzing trace with hash 890531696, now seen corresponding path program 1 times [2022-07-23 13:32:40,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:32:40,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651962568] [2022-07-23 13:32:40,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:32:40,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:32:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:32:40,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:32:40,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:32:40,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651962568] [2022-07-23 13:32:40,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651962568] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:32:40,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:32:40,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 13:32:40,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057283114] [2022-07-23 13:32:40,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:32:40,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:32:40,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:32:40,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:32:40,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:32:40,320 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:32:40,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:32:40,369 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2022-07-23 13:32:40,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 13:32:40,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-23 13:32:40,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:32:40,372 INFO L225 Difference]: With dead ends: 38 [2022-07-23 13:32:40,372 INFO L226 Difference]: Without dead ends: 37 [2022-07-23 13:32:40,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:32:40,378 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 34 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:32:40,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 24 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:32:40,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-07-23 13:32:40,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-07-23 13:32:40,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.48) internal successors, (37), 31 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 13:32:40,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2022-07-23 13:32:40,391 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 6 [2022-07-23 13:32:40,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:32:40,393 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2022-07-23 13:32:40,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:32:40,396 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2022-07-23 13:32:40,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-23 13:32:40,397 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:32:40,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:32:40,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 13:32:40,399 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-07-23 13:32:40,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:32:40,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1836673896, now seen corresponding path program 1 times [2022-07-23 13:32:40,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:32:40,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487592515] [2022-07-23 13:32:40,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:32:40,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:32:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 13:32:40,420 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 13:32:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 13:32:40,453 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 13:32:40,453 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-23 13:32:40,454 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-07-23 13:32:40,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-07-23 13:32:40,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-07-23 13:32:40,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-07-23 13:32:40,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-07-23 13:32:40,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-07-23 13:32:40,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-07-23 13:32:40,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-07-23 13:32:40,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 13:32:40,461 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-23 13:32:40,464 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-23 13:32:40,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:32:40 BoogieIcfgContainer [2022-07-23 13:32:40,479 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-23 13:32:40,480 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 13:32:40,480 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 13:32:40,480 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 13:32:40,481 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:32:39" (3/4) ... [2022-07-23 13:32:40,482 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-23 13:32:40,506 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 13:32:40,506 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 13:32:40,507 INFO L158 Benchmark]: Toolchain (without parser) took 1358.80ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 78.7MB in the beginning and 93.1MB in the end (delta: -14.4MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2022-07-23 13:32:40,507 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 109.1MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 13:32:40,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.83ms. Allocated memory is still 109.1MB. Free memory was 78.5MB in the beginning and 84.4MB in the end (delta: -5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 13:32:40,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.14ms. Allocated memory is still 109.1MB. Free memory was 84.4MB in the beginning and 83.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 13:32:40,508 INFO L158 Benchmark]: Boogie Preprocessor took 24.06ms. Allocated memory is still 109.1MB. Free memory was 83.0MB in the beginning and 81.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 13:32:40,509 INFO L158 Benchmark]: RCFGBuilder took 260.13ms. Allocated memory is still 109.1MB. Free memory was 81.9MB in the beginning and 72.6MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-23 13:32:40,509 INFO L158 Benchmark]: TraceAbstraction took 830.10ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 71.9MB in the beginning and 94.5MB in the end (delta: -22.6MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2022-07-23 13:32:40,509 INFO L158 Benchmark]: Witness Printer took 26.06ms. Allocated memory is still 134.2MB. Free memory was 94.5MB in the beginning and 93.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 13:32:40,511 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 109.1MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 180.83ms. Allocated memory is still 109.1MB. Free memory was 78.5MB in the beginning and 84.4MB in the end (delta: -5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.14ms. Allocated memory is still 109.1MB. Free memory was 84.4MB in the beginning and 83.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.06ms. Allocated memory is still 109.1MB. Free memory was 83.0MB in the beginning and 81.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 260.13ms. Allocated memory is still 109.1MB. Free memory was 81.9MB in the beginning and 72.6MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 830.10ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 71.9MB in the beginning and 94.5MB in the end (delta: -22.6MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Witness Printer took 26.06ms. Allocated memory is still 134.2MB. Free memory was 94.5MB in the beginning and 93.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 8]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int a = __VERIFIER_nondet_int(); [L16] int b = __VERIFIER_nondet_int(); [L17] CALL sum(a, b) VAL [\old(m)=-2147483648, \old(n)=-1] [L7] COND TRUE n <= 0 VAL [\old(m)=-2147483648, \old(n)=-1, m=-2147483648, n=-1] [L8] m + n VAL [\old(m)=-2147483648, \old(n)=-1, m=-2147483648, n=-1] - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 8]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 10]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 10]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 10]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 10]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 126 IncrementalHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 27 mSDtfsCounter, 126 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=1, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-23 13:32:40,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)